<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>测试1</title>
    <meta content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" name="viewport">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no"
    />
    <!--缓存测试-->
    <meta http-equiv="cache-control" content="max-age=0" />
    <meta http-equiv="cache-control" content="no-cache" />
    <meta http-equiv="expires" content="0" />
    <meta http-equiv="expires" content="Tue, 01 Jan 2018 1:00:00 GMT" />
    <meta http-equiv="pragma" content="no-cache" />

    <script type="text/javascript">
        (function (doc, win) {
            var docEl = doc.documentElement,
                resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
                recalc = function () {
                    var clientWidth = docEl.clientWidth;
                    if (!clientWidth) return;
                    clientWidth = clientWidth > 750 ? 750 : clientWidth;
                    docEl.style.fontSize = 100 * (clientWidth / 750) + 'px';
                };
            if (!doc.addEventListener) return;
            win.addEventListener(resizeEvt, recalc, false);
            doc.addEventListener('DOMContentLoaded', recalc, false);
        })(document, window);
    </script>
</head>

<body>
    <div class="home_main">
        <div>主分支修改测试</div>
        <div>不同修改测试</div>
        <div>主分支添加测试</div>
    </div>
</body>
</html>